Sterile Mushroom Grain Spawn Bag (5 Pound)

5-Pound Mushroom Grain Spawn Bags Get started on your mushroom-growing journey with our premium mushroom grain spawn bags! We store our bulk grain spawn in superior-quality Unicorn bags made in the USA, with a validated 0.5-micron filter patch to let air in and contaminants out. 60% more spawn than your standard grain spawn bag! 100% organic rye grains, thoroughly sterilized using temperature probes for optimal growth Perfectly hydrated grains for quick colonization Self-healing injection port bags for hassle-free inoculation and minimal contamination risk Clear usage instructions for beginner mushroom growers 5-pound bags of grain Why Use Our Sterilized Grain Spawn Bags Top-Quality Grains With our premium quality mushroom grain spawn bags, you can enjoy a bountiful harvest even on your first try. We hydrate and sterilize each product to maximise success. Eco-friendly Practices We help protect Mother Nature through a 100% sustainable production process. All our grains are